— Greta Thunberg (@GretaThunberg) August 28, 2019 The Swedish teenager has become the figurehead of a burgeoning movement of youth climate activists after her weekly protests inspired student strikes in more than 100 cities worldwide. Thunberg doesn’t fly, because of the high levels of emissions from air travel, according to a statement. The Malizia II allowed her to make a zero-emissions journey, thanks to solar panels and underwater turbines that generate electricity, the statement said.UN Secretary-General António Guterres has called on world leaders to present concrete plans to reduce greenhouse gas emissions at the upcoming summit in New York.